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use serde::{Deserialize, Serialize};
use crate::decode::Decode;
use crate::encode::{Encode, IsNull};
use crate::error::BoxDynError;
use crate::sqlite::{
type_info::DataType, Sqlite, SqliteArgumentValue, SqliteTypeInfo, SqliteValueRef,
};
use crate::types::{Json, Type};
impl<T> Type<Sqlite> for Json<T> {
fn type_info() -> SqliteTypeInfo {
SqliteTypeInfo(DataType::Text)
}
fn compatible(ty: &SqliteTypeInfo) -> bool {
<&str as Type<Sqlite>>::compatible(ty)
}
}
impl<T> Encode<'_, Sqlite> for Json<T>
where
T: Serialize,
{
fn encode_by_ref(&self, buf: &mut Vec<SqliteArgumentValue<'_>>) -> IsNull {
let json_string_value =
serde_json::to_string(&self.0).expect("serde_json failed to convert to string");
Encode::<Sqlite>::encode(json_string_value, buf)
}
}
impl<'r, T> Decode<'r, Sqlite> for Json<T>
where
T: 'r + Deserialize<'r>,
{
fn decode(value: SqliteValueRef<'r>) -> Result<Self, BoxDynError> {
let string_value = <&str as Decode<Sqlite>>::decode(value)?;
serde_json::from_str(&string_value)
.map(Json)
.map_err(Into::into)
}
}